<div>
    <div>
        <input type="text" placeholder="单向绑定、属性绑定" [value]="individualModelValue">
        <p>{{individualModelValue}}</p>
    </div>
    <div>
        <input type="text" placeholder="双向绑定" [(ngModel)]="twoWay">
        <p>{{twoWay}}</p>
    </div>
    <div>
        <app-sys-button [options] = "btnOptions" (btnClick)="btnClick()"></app-sys-button>
        <p>{{btnStr}}</p>
    </div>
</div>